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C Pereira S, Mendonça AM, Campilho A, Sousa P, Teixeira Lopes C. Automated image label extraction from radiology reports - A review. Artif Intell Med 2024; 149:102814. [PMID: 38462277 DOI: 10.1016/j.artmed.2024.102814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/29/2023] [Accepted: 02/12/2024] [Indexed: 03/12/2024]
Abstract
Machine Learning models need large amounts of annotated data for training. In the field of medical imaging, labeled data is especially difficult to obtain because the annotations have to be performed by qualified physicians. Natural Language Processing (NLP) tools can be applied to radiology reports to extract labels for medical images automatically. Compared to manual labeling, this approach requires smaller annotation efforts and can therefore facilitate the creation of labeled medical image data sets. In this article, we summarize the literature on this topic spanning from 2013 to 2023, starting with a meta-analysis of the included articles, followed by a qualitative and quantitative systematization of the results. Overall, we found four types of studies on the extraction of labels from radiology reports: those describing systems based on symbolic NLP, statistical NLP, neural NLP, and those describing systems combining or comparing two or more of the latter. Despite the large variety of existing approaches, there is still room for further improvement. This work can contribute to the development of new techniques or the improvement of existing ones.
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Affiliation(s)
- Sofia C Pereira
- Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal; Faculty of Engineering of the University of Porto, Portugal.
| | - Ana Maria Mendonça
- Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal; Faculty of Engineering of the University of Porto, Portugal.
| | - Aurélio Campilho
- Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal; Faculty of Engineering of the University of Porto, Portugal.
| | - Pedro Sousa
- Hospital Center of Vila Nova de Gaia/Espinho, Portugal.
| | - Carla Teixeira Lopes
- Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal; Faculty of Engineering of the University of Porto, Portugal.
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C Pereira S, Rocha J, Campilho A, Sousa P, Mendonça AM. Lightweight multi-scale classification of chest radiographs via size-specific batch normalization. Comput Methods Programs Biomed 2023; 236:107558. [PMID: 37087944 DOI: 10.1016/j.cmpb.2023.107558] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 04/17/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND AND OBJECTIVE Convolutional neural networks are widely used to detect radiological findings in chest radiographs. Standard architectures are optimized for images of relatively small size (for example, 224 × 224 pixels), which suffices for most application domains. However, in medical imaging, larger inputs are often necessary to analyze disease patterns. A single scan can display multiple types of radiological findings varying greatly in size, and most models do not explicitly account for this. For a given network, whose layers have fixed-size receptive fields, smaller input images result in coarser features, which better characterize larger objects in an image. In contrast, larger inputs result in finer grained features, beneficial for the analysis of smaller objects. By compromising to a single resolution, existing frameworks fail to acknowledge that the ideal input size will not necessarily be the same for classifying every pathology of a scan. The goal of our work is to address this shortcoming by proposing a lightweight framework for multi-scale classification of chest radiographs, where finer and coarser features are combined in a parameter-efficient fashion. METHODS We experiment on CheXpert, a large chest X-ray database. A lightweight multi-resolution (224 × 224, 448 × 448 and 896 × 896 pixels) network is developed based on a Densenet-121 model where batch normalization layers are replaced with the proposed size-specific batch normalization. Each input size undergoes batch normalization with dedicated scale and shift parameters, while the remaining parameters are shared across sizes. Additional external validation of the proposed approach is performed on the VinDr-CXR data set. RESULTS The proposed approach (AUC 83.27±0.17, 7.1M parameters) outperforms standard single-scale models (AUC 81.76±0.18, 82.62±0.11 and 82.39±0.13 for input sizes 224 × 224, 448 × 448 and 896 × 896, respectively, 6.9M parameters). It also achieves a performance similar to an ensemble of one individual model per scale (AUC 83.27±0.11, 20.9M parameters), while relying on significantly fewer parameters. The model leverages features of different granularities, resulting in a more accurate classification of all findings, regardless of their size, highlighting the advantages of this approach. CONCLUSIONS Different chest X-ray findings are better classified at different scales. Our study shows that multi-scale features can be obtained with nearly no additional parameters, boosting performance.
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Affiliation(s)
- Sofia C Pereira
- Faculty of Engineering of the University of Porto, Portugal; Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal.
| | - Joana Rocha
- Faculty of Engineering of the University of Porto, Portugal; Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal.
| | - Aurélio Campilho
- Faculty of Engineering of the University of Porto, Portugal; Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal.
| | - Pedro Sousa
- Hospital Center of Vila Nova de Gaia / Espinho, Portugal.
| | - Ana Maria Mendonça
- Faculty of Engineering of the University of Porto, Portugal; Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), Portugal.
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Aguiar-Ricardo I, Nunes-Ferreira A, Rigueira J, Rdrigues T, Cunha N, Antonio PS, Morais P, Pereira SC, Bernardes A, Santos I, Magalhaes A, Neves H, Pinto FJ, De Sousa J, Marques P. P1166Women as candidates for CRT: Are they less but better? Europace 2020. [DOI: 10.1093/europace/euaa162.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Women have been under-represented in trials of cardiac resynchronization therapy (CRT). Most available data suggest that CRT has a greater clinical benefit in women than in men. However, further studies are needed to investigate the exact reasons for these results.
Purpose
To compare the prognostic impact and response rate of CRT in women and man.
Methods
Prospective study, single-center study that included pts undergoing CRT implant from 2015 to 2019. Clinical and echocardiographic evaluation were made before CRT implant and between 6-12 months post-implant. Pts with EF elevations≥10% or LV end-systolic volume (ESV) reductions≥15% were classified as responders. Patients with EF elevations ≥ 20% or ESV reductions≥30% were classified as super-responders. All the parameters were compared between women and man. Prognostic impact of CRT was evaluated as total mortality by the Cox regression and Kaplan-Meier methods.
Results
From 2015-2019, 561 patients were submitted to CRT implant with a follow-up duration of 18.9 ± 15.8 months. From these 148 (26.4%) were female (mean age 72.2 ± 10 years, 22.4% ischemic, LVEF < 30% in 70.2%). The cardiovascular risk factors and comorbidities were similar in both populations (women and men). In the female group, dilated cardiomyopathy was more frequent than in men (71% vs 50.8%, p < 0.01), with ischemic heart disease being the second most frequent etiology of heart failure.
The frequency of LBBB was similar in both groups (63.9% in women and 57.0% in men, p = NS) however the QRS duration was higher in women (164 ± 17 vs 160 ± 24, p = 0.017). The baseline mean EF was similar (30.5 ± 10.3ms in women and 30.3 ± 11.4ms in men) but the ESV was lower (109.7 ± 59.9 vs 138.4 ± 64.6, p < 0.001).
The prevalence of complications and need for surgical revision were similar in both groups.
The rate of CRT responders was similar in both groups, although tendentially higher in women (64.3% in women vs 55.2% in men, p = NS). On the other hand, super-responder rate was statistically significant (38% in women vs 25.1% in men, p = 0.004). The long-term survival was similar in both groups.
Conclusion
The rate of super-responders was higher in women than in men. This may be explained by the higher prevalence of dilated cardiomyopathy in this subgroup of patients and by the fact that women have smaller hearts and a larger QRS duration at baseline, most likely to have a real LBBB. Long-term mortality of CRT was not gender related
Abstract Figure. Long-term survival by gender
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Affiliation(s)
- I Aguiar-Ricardo
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - A Nunes-Ferreira
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - J Rigueira
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - T Rdrigues
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - N Cunha
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - P S Antonio
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - P Morais
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - S C Pereira
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - A Bernardes
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - I Santos
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - A Magalhaes
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - H Neves
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - F J Pinto
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - J De Sousa
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - P Marques
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
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Graca Rodrigues TE, Nunes-Ferreira A, Cunha N, Santos R, Aguiar-Ricardo I, Rigueira J, Silverio Antonio P, Pereira SC, Morais P, Bernardes A, Pinto FJ, Sousa J, Marques P. P1162Atrial fibrillation and Cardiac resynchronization therapy - is this combination truly bad? Europace 2020. [DOI: 10.1093/europace/euaa162.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Cardiac resynchronization therapy (CRT) significantly reduces mortality and hospitalizations in patients with heart failure and reduced ejection fraction (EF). Atrial fibrillation (AF) is a very common comorbidity in these patients, however, CRT benefit in AF patients has been controversial.
Purpose
To compare the prognostic impact of CRT in patients (pts) with and without AF.
Methods
Prospective, single-center study that included pts undergoing CRT implantsince 2015. Clinical and echocardiographicevaluation were made before CRT implant and between 6-12 months post-implant. Pts with EF elevation ≥10% or LV end-systolic volume (ESV) reduction ≥15% were classified as responders. Patients with EF elevation ≥ 20% or ESV reduction ≥30% were classified as super-responders. All the parameters were compared between patients with and without AF.Prognostic impact of CRT was evaluated by comparing total mortality using the Cox regression and Kaplan-Meier methods.
Results
From 2015-2019, 566 CRTs were implanted (26.1% female, 72 ± 10.2 years old, follow-up duration 18.9 ± 15.8 months). From these patients, 166 patients (31%) had AF (73.5% males, mean age 72.2 ± 10.2 years, 37.3% ischemic, LVEF < 30% in 65.5%). The cardiovascular risk factors and comorbidities were similar in both populations (with and without AF), except for chronic kidney disease which was more frequent in AF pts(28% vs 17%, p = 0.012).
The prevalence of complications and surgical revision were similar in both groups.
The CRT response rate was similar in both groups (50% in AF group vs 59.6%, p = NS) as was the super-response rate (22.4% in FA pts vs 31.5%, p = NS).
The 4-year survival rate of patients with AF was similar to non-AF (83.7% vs 84.3%).
Conclusion
Despite the controversy about the efficacy of CRT in AF pts, in our population the long-term survival and CRT response rates were comparable between patients with and without AF.
Abstract Figure.
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Affiliation(s)
- T E Graca Rodrigues
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - A Nunes-Ferreira
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - N Cunha
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - R Santos
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - I Aguiar-Ricardo
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - J Rigueira
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - P Silverio Antonio
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - S C Pereira
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - P Morais
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - A Bernardes
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - F J Pinto
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - J Sousa
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
| | - P Marques
- Cardiology Department, Santa Maria Hospital, CHLN, CCUL, Lisbon School of Medicine, Lisboa, Portugal, Universidade de Lisboa, Lisbon, Portugal
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5
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Aguiar Ricardo I, Nunes-Ferreira A, Rigueira J, Rodrigues T, Cunha N, Antonio PS, Morais P, Pereira SC, Bernardes A, Santos I, Magalhaes A, Neves H, Pinto FJ, De Sousa J, Marques P. P541Cardiac resynchronization therapy: left or non-left bundle branch block? That is the question. Europace 2020. [DOI: 10.1093/europace/euaa162.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Cardiac resynchronization therapy (CRT) is associated with reduced mortality and improved quality of life in patients (pts) with low ejection fraction (EF) and conduction delays. Patients with left bundle branch block (LBBB) seem to be the ones who benefit the most from CRT and there is controversy about its efficacy in patients with non-LBBB.
Purpose
To compare the prognostic impact and the response rate to CRT in patients with LBBB and non-LBBB.
Methods
Prospective single-center study of patients who implanted CRT between 2015 and 2019. Clinical, electrocardiographic and echocardiographic evaluations were made before CRT implant and between 6-12 months post-implant. Patients with EF elevation ≥ 10% or left ventricle end-systolic volume (ESV) reduction ≥ 15% were classified as responders. Patients with EF elevation ≥ 20% or LV ESV reduction ≥ 30% were classified as super-responders. All the parameters were compared between patients with or without LBBB. Prognostic impact of resynchronization therapy was evaluated by comparing total mortality using the Cox regression and Kaplan-Meier methods.
Results
From 2015-2019, 566 CRTs were implanted (26.1% female, 72 ± 10.2 years old, follow-up duration 18.9 ± 15.8 months). From these patients, 59% had LBBB (69% males, mean age 71.6 ± 10.8 years, 34.5% ischemic, EF < 30% in 65.5%). The cardiovascular risk factors and comorbidities were similar in both populations (with and without LBBB), except for diabetes which was more frequent in non-LBBB patients (33% vs 50.6%, p = 0.007). Mean duration of QRS was similar between LBBB vs non-LBBB patients (163 ± 19ms vs 160 ± 22ms, p = NS) and baseline ejection fraction was also equivalent (29.8 ± 13.6% vs 27.9 ± 8.9%).
The prevalence of complications and surgical revisions were similar in both groups.
The response rate according to left ventricle remodelling criteria was higher in LBBB pts (65.9% vs 49.1%, p < 0.05), but the super-responders were similar in both groups (32.5% vs 26.4% p = NS).
The 4-year survival rate of patients with LBBB and non-LBBB was similar (86.5% vs 85.3%).
Conclusion
In our population the response rate to CRT was higher in LBBB pts. However, and despite the actual controversy about the efficacy of CRT in non-LBBB, the long-term mortality was similar in patients with or without LBBB.
Abstract Figure. lon-term survival
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Affiliation(s)
- I Aguiar Ricardo
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - A Nunes-Ferreira
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - J Rigueira
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - T Rodrigues
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - N Cunha
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - P S Antonio
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - P Morais
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - S C Pereira
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - A Bernardes
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - I Santos
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - A Magalhaes
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - H Neves
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - F J Pinto
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - J De Sousa
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
| | - P Marques
- Santa Maria University Hospital/CHULN, CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Cardiology, Lisbon, Portugal
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Espírito Santo J, Gomes MF, Gomes MJ, Peixoto L, C Pereira S, Acabado A, Freitas J, de Sousa GV. Intravenous immunoglobulin in lupus panniculitis. Clin Rev Allergy Immunol 2010; 38:307-18. [PMID: 19557315 DOI: 10.1007/s12016-009-8162-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Systemic lupus erythematosus (SLE) is a disease of unknown cause that may involve one or many organ or systems. Skin involvement is a major feature in this disease, and a wide variety of skin conditions may be present. Lupus erythematosus panniculitis (LEP) constitutes a rare form of cutaneous lupus characterized by recurrent nodular or plaque lesions that can vary from a benign and mild course to a more disfiguring disease. Initial therapy includes corticosteroids, antimalarials, and azathioprine and, in refractory cases, two antimalarials in association, mycophenolate mofetil, or other immunomodulators. Intravenous immuglobulin (IVIG) is used in many autoimmune disorders, like in SLE, although clinical trials have not yet taken place. In this report, we review skin manifestations of SLE and their treatment, IVIG, and finally a case of LEP successfully treated with IVIG when other therapy modalities failed.
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Guion-Almeida ML, Rodini ES, Pereira SC, Richieri-Costa A. Amniotic bands and the EEC syndrome. Birth Defects Orig Artic Ser 1996; 30:171-7. [PMID: 9125326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- M L Guion-Almeida
- Servico de Genética Clínica, Hospital de Pesquisa e Reabilitaçäo de Lesös Lábio-Palatais, Universidade de Säo Paulo, Bauru, Brazil
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Richieri-Costa A, Pereira SC. Autosomal recessive short stature, Robin sequence, cleft mandible, pre/postaxial hand anomalies, and clubfeet in male patients. Am J Med Genet 1993; 47:707-9. [PMID: 8267000 DOI: 10.1002/ajmg.1320470524] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We report on 2 unrelated Brazilian boys with the syndrome of autosomal recessive short stature, Robin sequence, cleft mandible, pre/postaxial hand anomalies, and clubfeet. This is the first report of male patients.
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Affiliation(s)
- A Richieri-Costa
- Serviço de Genética Clínica, Hospital de Pesquisa e Reabilitação de Lesões Lábio-Palatais, Universidade de São Paulo, Bauru, Brazil
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Abstract
A mother and daughter are described with similar facial and skeletal manifestations. The syndrome consists of blepharophimosis, malar hypoplasia, small thin lips, and long tapering fingers. The facial phenotype changes with age. Autosomal dominant inheritance is suggested.
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Affiliation(s)
- A Richieri-Costa
- Serviço de Genética Clínica, Hospital de Pesquisa e Reabilitação de Lesões Lábio-Palatais, USP, Bauru, Brazil
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Abstract
We report on 2 patients with the postaxial acrofacial dysostosis (AFD) syndrome. One patient was an isolated case; the other had an equally affected brother previously described [Richieri-Costa and Guion-Almeida, 1989]. Recurrence in sibs suggests autosomal recessive inheritance.
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Affiliation(s)
- S C Pereira
- Serviço de Genética Clínica, Hospital de Pesquisa e Reabilitação de Lesões Lábio-Palatais, Universidade de São Paulo, Bauru, Brazil
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Richieri-Costa A, Pereira SC. Short stature, Robin sequence, cleft mandible, pre/postaxial hand anomalies, and clubfoot: a new autosomal recessive syndrome. Am J Med Genet 1992; 42:681-7. [PMID: 1632438 DOI: 10.1002/ajmg.1320420511] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report on 5 unrelated Brazilian children with short stature, Robin sequence, cleft mandible, pre/postaxial hand anomalies, and clubfoot. Genetic aspects and phenotypic manifestations are compared with those of previous reports of acrofacial dysostoses and with other Robin sequence syndromes. We suspect that these patients present a previously undescribed autosomal recessive syndrome.
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Affiliation(s)
- A Richieri-Costa
- Serviço de Genética Clínica, Hospital de Pesquisa e Reabilitação de Lesões Lábio-Palatais, Universidade de São Paulo, Bauru, Brazil
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Abstract
The role of the visual cortex in brightness and pattern vision was re-examined in the rabbit. Animals were trained on both a brightness and a horizontal-vertical striation discrimination. Bilateral removal of the dura mater overlying the entire visual cortex produced no impairments in either brightness or pattern vision. When the visual cortex was devascularized by removal of the pia mater bilaterally, total loss of pattern vision was found with no impairment of brightness discrimination ability. The significance of the finding that the effects of slowly developing degenerative lesions are the same as those of surgical ablation was discussed.
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Abstract
Both normal and commissure-sectioned rabbits were examined over a variety of visual discrimination tasks. The visual displays were projected at various distances within the frontal visual field of the rabbit. The learning of either a black-white or a vertical-horizontal problem was found to be normal in commissure-cut animals. Furthermore, no deficit in angular acuity was observed. However, when they were tested with the patterns displayed at 25 cm distance, large impairments were found in the commissure-sectioned animals.
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Bestane WJ, Meira AR, Meloni W, Martins EM, Pereira SC, Arminda M, Turini G, Silva MR, Smit SP, Saraiva MA. [Cystitis treatment by drugstore personnel in São Paulo]. AMB Rev Assoc Med Bras 1980; 26:185-6. [PMID: 6970373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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